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Pointe-des-Monts to Anticosti - southern half

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 12 April 2026

Tonight and Monday.

Gale warning in effect.

Wind southwest 15 to 25 knots diminishing to southerly 10 to 15 near midnight then increasing to south 15 to 25 early Monday morning except south 45 near the coast. Wind becoming southeast 15 to 25 near noon Monday then diminishing to light Monday evening.

Periods of rain Monday. Fog forming Monday evening.

Temperatures near plus 1.

Waves

Issued 03:00 PM EDT 12 April 2026
Tonight and Monday. Seas 1 to 2 metres.

Extended Forecast

Issued 06:00 PM EDT 12 April 2026
Tuesday Wind northwest 15 to 25 knots.
Wednesday Wind east 20 to 30 knots.
Thursday Wind light.

Ice Forecast

Issued 10:00 AM EDT 12 April 2026 Today Tonight and Monday Open water. 

[ Canadian Ice Service ]

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Map of St. Lawrence - St. Lawrence River marine weather areas Miramichi North Cape Port Menier Roberval Airport Normandin Mistook Jonquière CFB Bagotville Cap-Chat Île Bicquette Charlo North Bay Airport Yarmouth Airport Brier Island St. Stephen Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Miscou Island Kouchibouguac Kouchibouguac Grand Manan Fundy Park (Alma) Bas Caraquet Bathurst Airport Lac Saint-Pierre Pointe-Noire Île d'Orléans Pointe-des-Monts L'Assomption Sept-Îles Airport Pointe Claveau Pointe de l'Islet Trois-Rivières Airport L'Isle-aux-Grues Deschambault Île Rouge Montréal-Trudeau Int'l Airport Montréal Metropolitain Airport Lac Memphrémagog Sainte-Anne-de-Bellevue Cap-Rouge Saint-Anicet Baie-Comeau Airport La Pocatière Pointe-au-Père New Carlisle Mont-Joli Airport Gaspé Airport Lake Nipissing - 45152 Rivière-la-Madeleine Beauport Cap-d'Espoir
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 12 April 2026 Today Tonight and Monday

Ice Edge

Ice edge estimated from Cape Breton Island near 4607N 5949W to 4631N
5919W to 4844N 6156W to 4919N 6025W to Newfoundland near 4753N
5924W. Sea ice west then northeast of the ice edge.

Ice Coverage

Open water.

Warnings

Warnings (In effect)

Gale warning in effect

Pointe-des-Monts to Anticosti - southern half

Issued 3:00 PM EDT 12 April 2026

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EDT 12 April 2026 Tonight and Monday At 3:00 p.m. EDT today ridge located from Maine to Ungava Bay.
By 10:00 a.m. EDT Monday departing ridge located from Newfoundland
to Labrador Sea.

At 3:00 p.m. EDT today low 993 mb located west of Lake Superior.
By 8:00 p.m. EDT Monday low 1000 mb located near Pointe-des-Monts.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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